MPX5100DP resolution

Hey There! I have a question about the MPX5100DP and it's resolution. I'm having some trouble (embarrassingly) understanding 45mV/kPa. I'm hoping to observe changes is air pressure in the .01kPA range with an arduino.

Is this possible? If not is there another sensor that would be a more appropriate choice?

With a 10-bit ADC that is typically used on the Arduino boards, you can only get 1024 voltage readings between 0 and 5V, giving a difference of 4.88mV between readings. Considering sensitivity of 45mV/kPa, the resolution is about 108Pa.

With a 10-bit ADC that is typically used on the Arduino boards, you can only get 1024 voltage readings between 0 and 5V, giving a difference of 4.88mV between readings. Considering sensitivity of 45mV/kPa, the resolution is about 108Pa.

I was hoping to use a bunch of Arduinos (5v) to sense the delta in pressure between rooms. I was looking to get near the : 0.1 in. H2O or 2.5 Pascals range. Is there a freescale product that would allow me to sense this?